CN202690884U - Petroleum underground speed reducer - Google Patents

Petroleum underground speed reducer Download PDF

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Publication number
CN202690884U
CN202690884U CN 201220218550 CN201220218550U CN202690884U CN 202690884 U CN202690884 U CN 202690884U CN 201220218550 CN201220218550 CN 201220218550 CN 201220218550 U CN201220218550 U CN 201220218550U CN 202690884 U CN202690884 U CN 202690884U
Authority
CN
China
Prior art keywords
cylindrical shell
shaft
gear
bearing
speed reducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220218550
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Chinese (zh)
Inventor
孙庆亮
Original Assignee
孙庆亮
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孙庆亮 filed Critical 孙庆亮
Priority to CN 201220218550 priority Critical patent/CN202690884U/en
Application granted granted Critical
Publication of CN202690884U publication Critical patent/CN202690884U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a petroleum underground speed reducer and relates to the field of petroleum underground mechanical devices. A first cylinder (7), a second cylinder (8) and a third cylinder (9) are fixedly connected through screws (10); a first outer gear (11) and a first inner gear (12) are arranged between an input shaft (1) and a middle shaft (2); the first outer gear (11) and the first inner gear (12) are engaged with each other; a second outer gear (13) and a second inner gear (14) are arranged between the middle shaft (2) and an output shaft (3); and the second outer gear (13) and the second inner gear (14) are engaged with each other. The petroleum underground speed reducer has a simple structure, is high in transmission efficiency, is energy-saving and is difficult to abrade; the enough running reliability and service life of the underground speed reducer are ensured; and the heavy-load running requirement of underground machinery is met.

Description

A kind of petroleum-well reducer
Technical field:
The utility model relates to mechanical device field under the oil well, relates in particular to a kind of petroleum-well reducer.
Background technique:
Work under optimum condition in order to make under the oil well mechanical device, usually need between its prime mover and working machine, dispose speed reduction gearing, for example, the turbine optimum speed of down-hole turbine power drill is about 600 rev/mins, and when using this power drilling tool deep-well or hard formation, the optimum speed of drill bit then is about 100 rev/mins, that have even lower, this just need to add suitable speed reduction gearing between the two at prime mover and working machine, itself and best operating point are mated, in the extracting device of oil by oil-submersible motor drive screw pump, because motor straight receives the restriction of objective condition, for ease of making, the optimal synchronisation rotating speed of motor is 3000 rev/mins, and the screw rod in the screw pump is done planetary motion, for avoiding excessive vibration, to prolong its operating life, its working speed then should not be too high, thereby also need between to add suitable speed reduction gearing, itself and best operating point are complementary, major requirement to mechanical device under the oil well is that radial dimension is little, it is high that transmission efficiency is wanted, in actual applications, often too small because of module, cause turning tooth resistance to flexure deficiency and very fast damage, in addition, employing NN type differential attachment is realized gearing down, and the inertial force that the planet wheel of this transmission device produces is difficult for balance, and transmission efficiency is on the low side.
The model utility content:
The purpose of this utility model provides a kind of petroleum-well reducer, and it is simple in structure, and transmission efficiency is high, and is energy-conservation not easy to wear, can guarantee that down-hole decelerator has enough operational reliabilitys and working life, satisfies the needs of down-hole mechanical heavy service.
In order to solve the existing problem of background technique, the utility model is by the following technical solutions: it is comprised of input shaft 1, jack shaft 2, output shaft 3, clutch shaft bearing 4, the second bearing 5, the 3rd bearing 6, the first cylindrical shell 7, the second cylindrical shell 8, the 3rd cylindrical shell 9, screw 10, the first external gear 11, the first internal gear 12, the second external gear 13, secondary annulus 14; Input shaft 1, jack shaft 2 and output shaft 3 are arranged on the first cylindrical shell 7, the second cylindrical shell 8 and the 3rd cylindrical shell 9 by clutch shaft bearing 4, the second bearing 5 and the 3rd bearing 6 respectively, be fixedly connected with by screw 10 between the first cylindrical shell 7, the second cylindrical shell 8 and the 3rd cylindrical shell 9, be provided with the first external gear 11 and the first internal gear 12 between input shaft 1 and the jack shaft 2, and the first external gear 11 and 12 engagements of the first internal gear, be provided with the second external gear 13 and secondary annulus 14 between jack shaft 2 and the output shaft 3, and the second external gear 13 and secondary annulus 14 engagements.
The utility model adopts engagement Involutes Gears Transmission in the short tooth system, and the composite curve radius of the tooth contact point of interior engagement reaches, so contact strength is high, the tooth depth of short tooth gear processed becomes short, the tooth top thickening so can improve flexural strength and difficult spring tooth, can satisfy the needs of down-hole mechanical heavy service.
The utility model is simple in structure, and transmission efficiency is high, and is energy-conservation not easy to wear, can guarantee that down-hole decelerator has enough operational reliabilitys and working life, satisfies the needs of down-hole mechanical heavy service.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
With reference to Fig. 1, this embodiment by the following technical solutions: it is comprised of input shaft 1, jack shaft 2, output shaft 3, clutch shaft bearing 4, the second bearing 5, the 3rd bearing 6, the first cylindrical shell 7, the second cylindrical shell 8, the 3rd cylindrical shell 9, screw 10, the first external gear 11, the first internal gear 12, the second external gear 13, secondary annulus 14; Input shaft 1, jack shaft 2 and output shaft 3 are arranged on the first cylindrical shell 7, the second cylindrical shell 8 and the 3rd cylindrical shell 9 by clutch shaft bearing 4, the second bearing 5 and the 3rd bearing 6 respectively, be fixedly connected with by screw 10 between the first cylindrical shell 7, the second cylindrical shell 8 and the 3rd cylindrical shell 9, be provided with the first external gear 11 and the first internal gear 12 between input shaft 1 and the jack shaft 2, and the first external gear 11 and 12 engagements of the first internal gear, be provided with the second external gear 13 and secondary annulus 14 between jack shaft 2 and the output shaft 3, and the second external gear 13 and secondary annulus 14 engagements.
This embodiment adopts engagement Involutes Gears Transmission in the short tooth system, the composite curve radius of the tooth contact point of interior engagement reaches, so contact strength is high, the tooth depth of short tooth gear processed becomes short, the tooth top thickening, so can improve flexural strength and difficult spring tooth, can satisfy the needs of down-hole mechanical heavy service.
This embodiment is simple in structure, and transmission efficiency is high, and is energy-conservation not easy to wear, can guarantee that down-hole decelerator has enough operational reliabilitys and working life, satisfies the needs of down-hole mechanical heavy service.

Claims (1)

1. a petroleum-well reducer is characterized in that it is comprised of input shaft (1), jack shaft (2), output shaft (3), clutch shaft bearing (4), the second bearing (5), the 3rd bearing (6), the first cylindrical shell (7), the second cylindrical shell (8), the 3rd cylindrical shell (9), screw (10), the first external gear (11), the first internal gear (12), the second external gear (13), secondary annulus (14); Input shaft (1), jack shaft (2) and output shaft (3) are respectively by clutch shaft bearing (4), the second bearing (5) and the 3rd bearing (6) are arranged on the first cylindrical shell (7), on the second cylindrical shell (8) and the 3rd cylindrical shell (9), the first cylindrical shell (7), be fixedly connected with by screw (10) between the second cylindrical shell (8) and the 3rd cylindrical shell (9), be provided with the first external gear (11) and the first internal gear (12) between input shaft (1) and the jack shaft (2), and the first external gear (11) and the first internal gear (12) engagement, be provided with the second external gear (13) and secondary annulus (14) between jack shaft (2) and the output shaft (3), and the second external gear (13) and secondary annulus (14) engagement.
CN 201220218550 2012-05-16 2012-05-16 Petroleum underground speed reducer Expired - Fee Related CN202690884U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220218550 CN202690884U (en) 2012-05-16 2012-05-16 Petroleum underground speed reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220218550 CN202690884U (en) 2012-05-16 2012-05-16 Petroleum underground speed reducer

Publications (1)

Publication Number Publication Date
CN202690884U true CN202690884U (en) 2013-01-23

Family

ID=47546510

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220218550 Expired - Fee Related CN202690884U (en) 2012-05-16 2012-05-16 Petroleum underground speed reducer

Country Status (1)

Country Link
CN (1) CN202690884U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130123

Termination date: 20140516